Took the "new" Jeep (new to us, we've had it three weeks now and our 2 year still calls it the new Jeep) to the beach this past week...drove around through some water and obviously sand, but not a whole lot..hubby was actually kinda bummed he didn't really have to put it in 4 wheel except once..anyway, that was yesterday and we didn't get it washed off til today....noticed that after washing it you can see "splash marks" on all the plastic...almost like the water splashes stained the plastic brown...We noticed when we got it that all the plastic could use a good rub down with something to bring back some of shine to it, it was looking kinda dull, but now it's dull with brown spots...lol....any idears?

First, try Mothers Back To Black. It comes in a small red bottle. If that doesn't work, try heat. A butane soldering iron will work. Heat the plastic up, not so much that it melts. Heating the plastic will bring out the natural color.